/* 手机端 */
@media(max-width: 620px) {
        /* 头部整体大小 */
        .header{
            justify-content:space-between;
            width:100%;
            background-color: #ffffff;
            height: 3em;
            display: flex;
            align-items: center;
            position: fixed;
            border-bottom:#ece9eb 1px solid;
            z-index: 1000;
        }
        /* logo大小 */
        .header-logo{
            margin-left: 2em;
        }
        /* 右边svg按钮 */
        .header-svg{
            margin-right: 1.2em;
        }
        /* 标题选择 */
        .header-choose{
            display: none;
        }
        /* 汉堡菜单  */
        .header-bgur{
            width:100%;
            position: fixed;
            margin-top: 3em;
            background-image: linear-gradient(#e66465, #9198e5);
            z-index: 1000;
        }
        /* 避免从移动端点开汉堡菜单然后回到电脑端而造成bug */
        .header-bgur-block{
            display: block;
        }
        .header-bgur-none{
            display:none;
        }
        /* logo */
        .header-logo {
            height: 80%;
        }
        /* 汉堡菜单层 */
        .header-bgur-textdiv {
            width: 100%;
            height: 2em;
            color: #707070;
            border-top: #dadaee solid 0.07em;
            background-color: #ffffff;
            display: flex;
            justify-content: center;
            align-items: center;
            font-size: 1.2em;
            font-weight: 600;
        }
}


/* 平板端 */
@media screen and (min-width:620px) and (max-width:980px) {
        /* 头部整体大小 */
        .header{
            width:100%;
            background-color: #ffffff;
            height: 3em;
            display: flex;
            justify-content: space-around;
            align-items: center;
            position: fixed;
            z-index: 1000;
        }
        /* 标题选择 */
        .header-choose{
            height:80%;
            width:7em;
            background-color:#ffffff;
            display: flex;
            justify-content: center;
            align-items: center;
            font-size: 1em;
            color:#707070;
            font-weight: 900;
            
        } 
        /* 右边svg按钮 */
        .header-svg{
            display: none;
        }
        /* 避免从移动端点开汉堡菜单然后回到电脑端而造成bug */
        .header-bgur-block{
            display: none;
        }
        .header-bgur-none{
            display:none;
        }
        /* logo大小 */
        .header-logo {
            height: 80%;
        }
}
/* 电脑端 */
@media(min-width: 980px) {
    /* 头部整体大小 */
    .header {
        width: 100%;
        background-color: #ffffff;
        height: 3em;
        display: flex;
        justify-content: space-around;
        align-items: center;
        position: fixed;
        border-bottom: #ece9eb 1px solid;
        z-index: 1000;
    }
    /* 标题选择 */
    .header-choose {
        height: 80%;
        width: 5em;
        display: flex;
        justify-content: center;
        align-items: center;
        font-size: 1em;
        color: #2b2929;
        font-weight: 800;
    }
    /* 避免从移动端点开汉堡菜单然后回到电脑端而造成bug */
    .header-bgur-block {
        display: none;
    }
    .header-bgur-none {
        display: none;
    }
    /* logo大小 */
    .header-logo {
        height: 80%;
    }
    /* 右边svg按钮 */
    .header-svg {
        display: none;
    }
}